html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, font, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td {
    margin: 0;
    padding: 0;
    border: 0;
    outline: 0;
    font-size: 100%;
    vertical-align: baseline;
    background: transparent;
}

body , html {
    position: relative;
    overflow-x: hidden;
    line-height: 1;
    font-weight: 200;
    font-family: 'Microsoft YaHei';
}

ol, ul {
    list-style: none;
}

i, em {
    font-style: normal;
}

blockquote, q {
    quotes: none;
}

blockquote:before, blockquote:after,
q:before, q:after {
    content: "";
    content: none;
}

/* remember to define focus styles! */
:focus {
    outline: 0;
}

/* remember to highlight inserts somehow! */
ins {
    text-decoration: none;
}

del {
    text-decoration: line-through;
}

/* tables still need ‘cellspacing=”0″‘ in the markup */
table {
    border-collapse: collapse;
    border-spacing: 0;
}

::-webkit-scrollbar {
    width: 5px;
    height: 5px;
}


::-webkit-scrollbar-track-piece {
    background-color: rgba(0, 0, 0, 0.2);
    -webkit-border-radius: 6px;
}


::-webkit-scrollbar-thumb:vertical {
    height: 5px;
    background-color: rgba(143, 143, 143, 0.7);
    -webkit-border-radius: 6px;
}

::-webkit-scrollbar-thumb:horizontal {
    width: 5px;
    background-color: rgba(246, 246, 246, 0.51);
    -webkit-border-radius: 6px;
}

.btn_box {
    position: relative;
    padding: 0.05rem 0 0 0.05rem;
}

.video {
    position: relative;
    width: 0.9rem;
    height: 0.9rem;
    background: #ff6aab;
    border-radius: 100%;
    cursor: pointer;
    border: 0.1rem solid #fff;
    animation: 1.8s scale linear infinite;
}

.v_border {
    position: absolute;
    top: 0;
    left: 0;
    width: 1.1rem;
    height: 1.1rem;
    border-radius: 100%;
    border: 1px solid #ff4f5c;
    animation: 1.8s fadeIn linear infinite;
}

.video span {
    display: block;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    left: 0.35rem;
    width: 0;
    height: 0;
    border-top: 0.25rem solid transparent;
    border-bottom: 0.25rem solid transparent;
    border-left: 0.35rem solid #fff;
}

@keyframes scale {
    0% {
        transform: scale(1);
    }
    25% {
        transform: scale(1.1);
    }
    50% {
        transform: scale(1.2);
    }
    75% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes fadeIn {
    0% {
        transform: scale(1);
        opacity: 0;
    }
    25% {
        transform: scale(1.1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.2);
        opacity: 1;
    }
    75% {
        transform: scale(1.1);
        opacity: 0.5;
    }
    100% {
        transform: scale(1);
        opacity: 0;
    }

}